East Lake South
Hillsborough County, FloridaLimited DataHypereutrophic
East Lake South is a highly nutrient-loaded hypereutrophic lake in Hillsborough County, Florida. Water quality is graded F based on 1 sampling years through 2025. Compared to the 221 other monitored lakes in Hillsborough County, East Lake South ranks #215 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-09-09. Grade methodology: LakeGrade methodology.
Watch East Lake South water quality
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
No clarity data. Phosphorus level: 110 µg/L. Trophic State Index: 72.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 110 µg/L | F |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 72 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Location
County Ranking
Ranked #215 of 222 lakes in Hillsborough County
Cleaner Lakes Within 30 Miles
East Lake South holds Grade F. One nearby lake has a higher grade.
Nearby Lakes in Hillsborough County
More Florida Lake Rankings
Other Grade F Lakes in Florida
Polk County · Clarity: 1.3 ft
Polk County · Clarity: 1 ft
Alachua County · Clarity: 2.4 ft
Volusia County · Clarity: 2 ft
Brevard County · Clarity: 1.6 ft
Highlands County · Clarity: 1 ft
Hypereutrophic Lakes in Florida
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of East Lake South under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.
- Envirofocus Technologies LlcTampa · 1.8 mi away · NPDES FL0687138Recent violation
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Data Sources
Water quality data from the EPA Water Quality Portal
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-09-09
Monitoring stations: 1
Where to stay near East Lake South
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